Alexander Graham Stone, 72, a retired Army colonel and a former employe of North American Aviation in Washington, died Jan. 14 at the Good Samaritan Hospital in Palm Beach, Fla., after a heart attack.

Col. Stone, who was born in Annapolis, graduated from the U.S. Military Academy at West Point in 1930. He was commissioned in the field artillery and was a noted Army horseman and polo player. During World War II, he was stationed at the Pentagon. He was the post commander of Fort Leslie J. McNair in Washington at the time he retired in 1957.

His military decorations included the Legion of Merit.

From 1957 to 1967, Col. Stone was a military liaison official with North American Aviation here.

For the past several years he had maintained a home in Palm Beach as well as one in Chevy Chase and then in Washington.

He was a member of the Army & Navy, Metropolitan and Chevy Chase clubs in this area and the Beach, Everglades and Four Arts clubs in Palm Beach.

Survivors include his wife, Polly Corbin Stone of Palm Beach and Washington; two daughters, Mrs. Christopher Ringling of Houston and Mrs. Stephen Moss of Orlando, Fla.; a son, George Graham Stone of Arlington, and eight grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Memorial Fund of the Class of 1930, U.S. Military Academy, West Point, N.Y.